Retroperitoneal fibrosis requiring prompt nephrostomy in a case with immunoglobulin A vasculitis. (3rd September 2022) - Ishihama, Y; Fukumoto, K; Watanabe, R; Nakatani, S; Tsuda, A; Otoshi, T; Yamada, K; Yamada, S; Negoro, N; Emoto, M; Hashimoto, M